The CRISPR protein (blue and pink) is hooked up to an RNA sequence (orange) that guides where to cut DNA (purple)Science Photo Library / Alamy Stock PhotoThe risk of developing many common conditions could be drastically reduced by making dozens of edits to peoples genomes at the embryo stage, claims a team of biologists and ethicists. We dont yet have the technology to do this safely, but we should start thinking about whether to use it when we do, they say.However, their paper has come under fire from other biologists, who say we currently know too
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